| 长期施氮、磷、钾化肥对玉米产量及土壤肥力的影响 |
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| 引用本文： | 刘恩科,赵秉强,胡昌浩,李秀英,李燕婷.长期施氮、磷、钾化肥对玉米产量及土壤肥力的影响[J].植物营养与肥料学报,2007,13(5):789-794. |
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| 作者姓名： | 刘恩科 赵秉强 胡昌浩 李秀英 李燕婷 |
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| 作者单位： | 1.中国农业科学院农业资源与农业区划研究所 北京100081; |
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| 基金项目： | 中国农业科学院杰出人才基金 |
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| 摘 要： | 以1990年建立的国家褐潮土土壤肥力与肥料效益长期监测基地(北京昌平站)的长期肥料定位试验为研究平台,研究了不同施肥制度对玉米产量和土壤肥力的影响。结果表明,长期均衡地施NPK肥或NPK与有机肥配施,可以显著提高玉米产量和土壤有机质、全氮、全磷、速效氮、速效磷、速效钾等肥力指标,并能提高土壤微量元素的含量;而不均衡施肥(N、NK、NP、PK)导致相应的营养元素的耗竭。相关分析表明,在褐潮土上增施磷肥和有机肥对提高玉米产量具有重要的作用。
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| 关 键 词： | 无机肥料 玉米产量 土壤肥力 长期施肥 |
| 文章编号： | 1008-505X（2007）05-0789-06 |
| 收稿时间： | 2006-05-25 |
| 修稿时间： | 2007-10-23 |
Effects of long-term nitrogen, phosphorus and potassium fertilizer applications on maize yield and soil fertility |
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| LIU En-ke,ZHAO Bing-qiang,HU Chang-hao,LI Xiu-ying,LI Yan-ting.Effects of long-term nitrogen, phosphorus and potassium fertilizer applications on maize yield and soil fertility[J].Plant Nutrition and Fertilizer Science,2007,13(5):789-794. |
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| Authors: | LIU En-ke ZHAO Bing-qiang HU Chang-hao LI Xiu-ying LI Yan-ting |
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| Affiliation: | 1.Agricultural Resources and Regional Planning;CAAS;Beijing 100081;China; |
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| Abstract: | A study on crop yield and soil fertility with different fertilization systems were carried out based on a 13-year fertilizer experiment in Drab Fluvoaquic soil in Beijing.At this site,13 different treatments were established in 1990.Seven treatments were chosen for this study: CK(no fertilizer application),N,NK,NP,PK,NPK and NPKM(NPK with farm yard manure).The amount of chemical fertilizer per year was N 150 kg/ha,P2O5 75 kg/ha,K2O 45 kg/ha and manure 22.5 t/ha.The results indicted that crop yields of NPK and NPKM treatments were greater than other treatments.Soil organic matter,total N and P,available N,P and K and microelement contents were increased in NPK and NPKM treatments.On the contrary,total N and P were exhausted in the treatments without N and P fertilizers.Available P and K had the same variation trend in the treatments without P and K fertilizers.The phosphorus fertilizer and farmyard manure had the best effects on maize yield in Drab Fluvo-aquic soil. |
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| Keywords: | inorganic fertilizers maize yield soil fertility long-term fertilization |
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